National Repository of Grey Literature 41 records found  beginprevious22 - 31next  jump to record: Search took 0.01 seconds. 
Thermal degradation of the wood with the application of fire retardants
Woffová, Helena ; Poláčik, Ján (referee) ; Šnajdárek, Ladislav (advisor)
This bachelor‘s thesis is applied on the area of wood burning and how retarders affect the process. The theoretical part is composed of research of chemical composition of wood and its processes that exist during wood burning. Also, impacts of these retarders on these processes have been analyzed as well as methods of the research. The experimental part contains applied termogravimetric analysis of chosen retardant and its evaluation.
Electrolytes containing a phosphorus-based flame retardant
Pelikán, Ondřej ; Libich, Jiří (referee) ; Máca, Josef (advisor)
The diploma thesis is focused on the theoretical knowledge of lithium accumulators. More attention is given to electrolytes and especially to flame retardants, where the types and individual examples of flame retardants are described more detailed. The practical part is focused on the individual laboratory measurement of selected samples of electrolytes with different flame retardants. The measurement results are analyzed in other parts.
Pěstování vybraných druhů rostlin pro energetické využití
ŠVEC, Miroslav
This diploma thesis on the topic "Cultivation of selected plant species for energy use" in the first chapters of the theoretical part deals with Czech and world energy. The chapters on renewable energy sources and the possibilities of using biomass for plants for energy purposes follow. The research also deals with grasslands as alternative energy sources with a focus on direct burning. The last chapters of the research are focused on the cultivation of selected energy crops, such as the Elymus elongatus grass (subspecies Ponticus, Szarvasi-1) and Miscanthus × giganteus. The practical part describes the establishment, nursing and harvesting of small-scale experiments of Szarvasi-1 grass and Miscanthus × giganteus grass varieties, which were cultivated on the premises of the University of South Bohemia in České Budějovice and were grown as energy crops for direct incineration. Experiments with the Szarvas-1 cultivation took place in three types of farming. The first variation was the so-called "extensive" form where the plants were not fertilized with any fertilizer. The second form of farming was the "intensive" variant, in which the fertilizer was fertilized with mineral fertilizers. The last variant labeled "digestate" was fertilized with organic fertilizer. Maloparcelian experiments with Miscanthus × giganteus were carried out only in one variation of cultivation than Szarvasi-1, "intensive". For both varieties of energy crops harvested in spring 2013 and for all cultivation variants, the yield potentials from the last five years of vegetation of these cultures were evaluated after a six-year vegetation period. The evaluated parameters were in particular the yields of fresh matter and dry matter in t ha-1, but also the average solids content in %. These results were recorded and compared with specialist literature. The results of the work show that Miscanthus × giganteus yields on average higher yields than Szarvasi-1, which surprisingly best responds to organic fertilizer fertilization.
The Combustion of Organic Lightweighting Agents in the Chamotte Materials
Smékalová, Veronika ; Keršner, Štěpán (referee) ; Sokolář, Radomír (advisor)
Lightweight chamotte products are popular building material. There are many types of lightweight chamotte on the market, but the most popular lightening options are organic ingredients. This brings some problems to the production of these products. This thesis deals with the burning of various types of lighters from shards of fireclay materials. In the theoretical part are summarized raw materials, which are necessary for production of lightweight chamotte. The results of the published research studies on the topic of lightening of organic lightening products are being described here. The practical part deals with properties of products made of clay or kaolin with the addition of a certain amount of lighter. These added lighters are spruce sawdust, beech sawdust, peat, bran, paper slurry and anthracite. All these lighters are direct. For comparison, the cenospheres, which represent indirect lightweights, were also included in the research. For all specimens, the temperature interval of burnout of specimens, refractoriness, classification temperature, bulk density, thermal conductivity coefficient and other properties were defined.
Guesthouse in Špindlerově Mlýně - construction technology project
Brychta, Ondřej ; Henková, Svatava (referee) ; Venkrbec, Václav (advisor)
THE OBJECTIVE OF THIS DIPLOMA WORK IS THE BUILDING-TECHNOLOGICAL PROJECT OF THE PENSION IN SPINDLER MILL. DIPLOMA WORK REALIZING GROWING LOWER BUILDINGS AND GROSS TOP STAYS OF THE PENSION OBJECT. DETAILS ARE DETAILED FOR THE MOST DEMANDED DESIGN OF MACHINERY, BUDGET BUDGET, TIME SCHEME, CONTROL AND TEST PLANS, BUILDING EQUIPMENT, DESIGNATION OF MOVING MECHANISM AND WIDER RELATIONSHIPS. THE DIPLOMA WORK IS PROCESSED ON THE BASIS OF THE TECHNICAL SIGNS PROVIDED BY THE PROJECTANT
Study of possibilities of modification of insulators based on natural fibers for improvement of their fire reaction
Urbánek, Tomáš ; Sedlmajer, Martin (referee) ; Zach, Jiří (advisor)
This paper deals with new possibilities of modification of organic (including natural) fibers to improve their reaction to fire used in the production of thermal and acoustic insulators. The aim of the thesis is to achieve a minimum reaction class to fire D in final insulators.
Phytodiversity in old fields of different age and management history on agricultural land adjacent to Czech villages in Romanian Banat area
Veselý, Adam ; Kovář, Pavel (advisor) ; Tichý, Tomáš (referee)
The main aim of this thesis was to identify the main factors influencing development and diversity of vegetation on old fields around village Svatá Helena in Romania. I evaluated the influence of age of an old field, its management (mowing, pasture, burning and fallowing), soil chemical properties, topography and surrounding vegetation. Using phytosociological relevés I collected data about species composition and coverage of species of the old field vegetation. With the assistance of local inhabitants I found out the age of the old fields and the type of applied management. I performed chemical analysis of soil properties, determined amount of available phosphorus, total carbon and nitrogen and pH. I also performed floristic survey of surrounding vegetation. The data showed a unimodal trend in plant diversity during succession. The maximal diversity was recorded on 12 years old old fields. The diversity was also influenced by C/N ratio of soils. Growing C/N ratio had a negative effect on plant diversity. Analysis also showed some interesting connections between soil properties and topographic factors. Organic C and N in soils were rising with age of old field, rate of accumulation is higher on slopes. The results showed that soil chemical properties have the highest influence on species...
Case study of physiotherapeutic care for a patient with the diagnosis of 2nd and 3rd degree burns of hands and the head
Purchartová, Dana ; Pánek, David (advisor) ; Křížek, Tomáš (referee)
Title: Case study of physiotherapeutic care for a patient with the diagnosis of 2nd and 3rd degree burns of hands and the head Summary: The aim of this work is to obtain a comprehensive overview of the problems of burns and the medical and rehabilitation process of this diagnosis. The work is divided into a general and special section. The general part includes the anatomy and physiology of skin, the definition and pathology of burns and the possible methods of treatment focusing on the use of physiotherapeutic care. The special section includes the methodology of work and uses a case study to deal with the anamnesis, the input kinesiologic analysis, the course of therapeutic units, the output kinesiologic analysis and the evaluation of the effect of the therapy on the particular patient. Key words: burn, burning, skin, rehabilitation, physiotherapy, case study
Possibilities for the use of fire extinguishing equipment for extinguishing fires
HRNČÍŘ, Miroslav
In my bachelor thesis about the Possibility of usage fixed fire extinguishing systems for extinguishing fires I was mainly interested in the topic of fixed fire extinguishing systems and their usage and also in the problematics of fixed fire extinguishing systems installed and used in the SYNTHOS Kralupy a. s., SYNTHOS PBR s. r. o. and TAMERO INVEST s. r. o. (companies) For this purpose, four fixed fire extinguishing systems were chosen based on the used fire extinguishing agent. According to these criteria were chosen water, foam, powder and gas based fixed fire extinguishing systems, which are described in the thesis with regard to their construction, operation and usage. Chosen fixed fire extinguishing systems were further evaluated regarding their capabilities for extinguishing fire. According to the conducted research current options for fixed fire extinguishing systems are used. Even though current options of usage fixed fire extinguishing systems are used it is possible to improve the usage of them by introducing technical and organizational measures. As a crucial technical measure, there is proposed a technical adjustment of the water based fixed fire extinguishing system. For improving the usage of this fixed fire extinguishing system and increasing the level of fire safety of the guarded object it is proposed to change this non-automatic fixed fire extinguishing system to automatic. Other devices are automatic and the proposed improvements do not have such underlying character as it in case of the evaluated water based fixed fire extinguishing system. In the theoretical part of the thesis there are described terms like fire, burning and conflagration (fire). There are named conditions and possibilities for the origin of fire and its spreading and is described the spreading of conflagration in time and space. Furthermore, the theoretical part of the thesis is concerned about named fixed fire extinguishing systems. There is the history of their use for fighting fire, the overview of fixed fire extinguishing systems based on the used agent and the description on the different kinds of fixed fire extinguishing systems along with the description of the possibilities of their use for fighting fire. In the theoretical part are also mentioned new technologies used in the field of fixed fire extinguishing systems. The conclusion of the thesis is focused on the problematics of operation and operational capability of fixed fire extinguishing systems.
Quality control of biodegradable waste process
Krbalová, Maria ; Fiala, Alois (referee) ; Koška, Petr (advisor)
The waste production and especially biodegradable waste is following mankind since the beginning of his existence. This thesis deals with a description and dividing of current available waste process technologies, including description of their advantages and disadvantages. The work is also focused on the more detailed description of the composting technology, its control and opportunities to influence on resulting parameters of compost product. The information about technical description of workplace equipments, including industrial and technological processes was provided by the company VIA ALTA from their compost plant in Blansko.

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